HK217996A - Abnormality detecting device - Google Patents

Abnormality detecting device

Info

Publication number
HK217996A
HK217996A HK217996A HK217996A HK217996A HK 217996 A HK217996 A HK 217996A HK 217996 A HK217996 A HK 217996A HK 217996 A HK217996 A HK 217996A HK 217996 A HK217996 A HK 217996A
Authority
HK
Hong Kong
Prior art keywords
detecting device
abnormality detecting
abnormality
detecting
Prior art date
Application number
HK217996A
Inventor
Susumu Sato
Yoshihiro Togashi
Norio Ito
Koichi Ishii
Shinji Yasuda
Original Assignee
Mitsubishi Electric Corp
Susumu Sato
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp, Susumu Sato filed Critical Mitsubishi Electric Corp
Publication of HK217996A publication Critical patent/HK217996A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H33/563—Gas reservoirs comprising means for monitoring the density of the insulating gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H2033/567—Detection of decomposition products of the gas

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Testing Relating To Insulation (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
HK217996A 1989-11-24 1996-12-19 Abnormality detecting device HK217996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1305074A JP2646141B2 (en) 1989-11-24 1989-11-24 Anomaly detection device

Publications (1)

Publication Number Publication Date
HK217996A true HK217996A (en) 1996-12-27

Family

ID=17940803

Family Applications (1)

Application Number Title Priority Date Filing Date
HK217996A HK217996A (en) 1989-11-24 1996-12-19 Abnormality detecting device

Country Status (5)

Country Link
US (1) US5075544A (en)
EP (1) EP0434893B1 (en)
JP (1) JP2646141B2 (en)
DE (1) DE69028188D1 (en)
HK (1) HK217996A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04109151A (en) * 1990-08-29 1992-04-10 Susumu Sato Sensor
US5218212A (en) * 1989-11-24 1993-06-08 Mitsubishi Denki Kabushiki Kaisha Device for optically detecting a chemical change in fluid
US5468645A (en) * 1993-07-26 1995-11-21 Kirollos; Kirollos S. Method for real-time colorimetric measurement of exposure to airborne pollutants
FR2756043B1 (en) * 1996-11-21 1998-12-24 Alsthom Cge Alcatel DEVICE FOR DETECTION OF GASEOUS PRODUCTS IN AN ORGANIC INSULATING MATERIAL
WO1999045369A1 (en) * 1998-03-07 1999-09-10 Robert Bosch Gmbh Optical sensor
KR100392336B1 (en) * 2000-10-23 2003-07-22 주식회사 효성 apparatus for indicating internal fault zone of gas insulation device
DE102019220367A1 (en) * 2019-12-20 2021-06-24 Siemens Aktiengesellschaft High-voltage bushing and procedures for their operational monitoring

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998591A (en) * 1975-09-26 1976-12-21 Leeds & Northrup Company Spectrochemical analyzer using surface-bound color reagents
US4136566A (en) * 1977-06-24 1979-01-30 University Of Utah Semiconductor temperature sensor
US4200110A (en) * 1977-11-28 1980-04-29 United States Of America Fiber optic pH probe
JPS55136942A (en) * 1979-04-13 1980-10-25 Hitachi Ltd Detecting method and apparatus for fluoride gas
JPS55163442A (en) * 1979-06-06 1980-12-19 Hitachi Ltd Adsorbent deterioration detection device of gas filled circuit breaker
US4471186A (en) * 1980-06-12 1984-09-11 Mitsubishi Denki Kabushiki Kaisha Abnormal condition detector of electric apparatus
JPS5724844A (en) * 1980-07-21 1982-02-09 Mitsubishi Electric Corp Detecting device for abnormality of gas
GB2103786A (en) * 1981-08-14 1983-02-23 Ici Plc Fibre optic sensor
DE3213183A1 (en) * 1982-04-08 1983-10-20 Max Planck Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen ARRANGEMENT FOR OPTICAL MEASUREMENT OF PHYSICAL SIZES
JPS6039536A (en) * 1983-08-12 1985-03-01 Hochiki Corp Gas sensor
CA1276532C (en) * 1985-02-26 1990-11-20 Heinrich Kimmel Method for the continuous measurement of the partial pressure of gases and vapors
JPS6228418A (en) * 1985-07-23 1987-02-06 Nippon Spindle Mfg Co Ltd Spinning ring
CA1257185A (en) * 1985-09-06 1989-07-11 Jean-Marie Braun Gas decomposition detector for gas-insulated electrical apparatus
BR8707455A (en) * 1986-09-15 1988-11-01 Hughes Aircraft Co SYSTEM AND PROCESS TO DETECT IONS IN WATER SOLUTION AND PROBE FOR PARTIAL INSERTION IN THE SAME

Also Published As

Publication number Publication date
US5075544A (en) 1991-12-24
EP0434893A2 (en) 1991-07-03
JP2646141B2 (en) 1997-08-25
JPH03165240A (en) 1991-07-17
EP0434893A3 (en) 1991-11-21
EP0434893B1 (en) 1996-08-21
DE69028188D1 (en) 1996-09-26

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20040531